Granahan Investment Management, LLC
In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Granahan Investment Management, LLC reported 159 stock positions worth $2.0 billion. Its top holding was Porch (PRCH) at 4.3% of the portfolio, followed by Genius Sports (GENI, 3.9%) and Marex UK (MRX, 3.7%). Compared with Q4 2024, it opened 18 new positions, sold out of 39, added to 59 and reduced 82. The biggest buy was Descartes Systems Grp (DSGX, shares +715%) and the biggest sale Axon Enterprise (AXON, shares −48%).
- Most Recent 13F
- Q2 2026
- Location
- WALTHAM, MA
- CIK
- 0001026710
- Portfolio Value
- $2.0B (Q1 2025)
- SEC Filing
- 0001398344-25-009461 ↗ filed May 15, 2025
Holdings Value
Holdings 159 stocks · $2.0B
| PRCH Porch Group Inc. | 4.26% | 11,728,584 | $85.5M | Reduce -1.4% |
| GENI Genius Sports Ltd. | 3.88% | 7,785,387 | $77.9M | Reduce -2.2% |
| MRX Marex UK Holdings Ltd. filed as MAREX GROUP PLC | 3.72% | 2,117,060 | $74.8M | Reduce -3.4% |
| ODD Oddity Tech Ltd. Class A | 3.35% | 1,555,191 | $67.3M | Add +1.1% |
| VCTR Victory Capital Holding - A | 3.02% | 1,047,949 | $60.6M | Reduce -7.5% |
| SPSC SPS Commerce Inc. | 2.67% | 403,668 | $53.6M | Add +33.3% |
| TOST Toast Inc. Class A | 2.47% | 1,497,941 | $49.7M | Reduce -5.1% |
| COMP Compass Inc. Class A | 2.35% | 5,400,238 | $47.1M | Add +34.0% |
| LTH Life Time Group Holdings Inc. | 2.35% | 1,560,944 | $47.1M | Reduce -4.7% |
| AXON Axon Enterprise Inc. | 2.21% | 84,333 | $44.4M | Reduce -47.8% |
| CRS Carpenter Technology | 2.10% | 233,017 | $42.2M | Reduce -12.8% |
| SRAD Sportradar Group AG-A | 2.04% | 1,897,509 | $41.0M | Reduce -5.5% |
| CWST Casella Waste Systems Inc. Class A | 1.90% | 342,978 | $38.2M | Reduce -7.9% |
| DSGX The Descartes Systems Grp | 1.90% | 378,982 | $38.2M | Add +715.5% |
| INDI Indie Semiconductor Inc. Class A | 1.78% | 17,520,397 | $35.7M | Reduce -0.9% |
| SMTC Semtech Corp. | 1.64% | 954,921 | $32.8M | Add +108.5% |
| KRNT Kornit Digital Ltd. | 1.61% | 1,693,833 | $32.3M | Add +6.2% |
| MGNI Magnite Inc. | 1.51% | 2,649,990 | $30.2M | Reduce -26.7% |
| PHR Phreesia Inc. | 1.45% | 1,138,557 | $29.1M | Reduce -21.7% |
| CSGP Costar Group Inc. | 1.37% | 347,693 | $27.5M | Reduce -2.9% |
| SG Sweetgreen Inc. Class A | 1.33% | 1,063,717 | $26.6M | Add +4.0% |
| FWRG First Watch Restaurant Group | 1.32% | 1,594,267 | $26.5M | Add +8.3% |
| STEP Stepstone Group Inc. Class A | 1.32% | 508,151 | $26.5M | Add +45.7% |
| FIX Comfort Systems USA Inc. | 1.10% | 68,252 | $22.0M | New |
| PAR Par Technology Corp. | 1.03% | 336,573 | $20.6M | Reduce -3.3% |
| KRUS Kura Sushi USA Inc. Class A | 1.02% | 401,143 | $20.5M | Add +9.3% |
| SIBN Si-Bone Inc. | 1.00% | 1,432,701 | $20.1M | Reduce -12.3% |
| RBC RBC Bearings Inc. | 1.00% | 62,292 | $20.0M | Add +2.1% |
| ACHR Archer Aviation Inc. Class A | 0.99% | 2,800,177 | $19.9M | Add +31.8% |
| FOUR SHIFT4 Payments Inc. Class A | 0.97% | 238,142 | $19.5M | Reduce -54.2% |
| HUBS HubSpot Inc. | 0.97% | 34,001 | $19.4M | Reduce -8.1% |
| ACVA Acv Auctions Inc. Class A | 0.96% | 1,361,305 | $19.2M | Reduce -5.2% |
| PCTY Paylocity Holding Corp. | 0.89% | 95,913 | $18.0M | Reduce -36.7% |
| MOD Modine Manufacturing Co. | 0.89% | 232,146 | $17.8M | Add +120.8% |
| TCBI Texas Capital Bancshares Inc. | 0.87% | 233,766 | $17.5M | Reduce -10.0% |
| WSC Willscot Holdings Corp. | 0.86% | 620,627 | $17.3M | Add +5.3% |
| KIDS Orthopediatrics Corp. | 0.82% | 667,057 | $16.4M | Reduce -15.2% |
| STKL Sunopta Inc. | 0.81% | 3,346,836 | $16.3M | Add +20.3% |
| TRNS Transcat Inc. | 0.79% | 213,167 | $15.9M | Add +12.9% |
| GTES Gates Industrial Corp. UK Ltd. | 0.77% | 842,880 | $15.5M | Add +18.5% |
| SPT Sprout Social Inc. Class A | 0.75% | 686,822 | $15.1M | Reduce -20.7% |
| FTAI Ftai Aviation Ltd. | 0.74% | 134,548 | $14.9M | Add +128.9% |
| SN Sharkninja Inc. | 0.73% | 175,694 | $14.7M | Add +2.5% |
| EXAS Exact Sciences Corp. | 0.73% | 337,875 | $14.6M | Reduce -23.9% |
| INSM Insmed Inc. | 0.71% | 187,802 | $14.3M | Reduce -10.3% |
| NTNX Nutanix Inc. Class A | 0.71% | 204,859 | $14.3M | Add +6.8% |
| KLC Kindercare Learning Cos Inc. | 0.71% | 1,228,286 | $14.2M | Reduce -15.1% |
| KNF Knife River Corp. | 0.69% | 154,247 | $13.9M | Reduce -4.5% |
| LEU Centrus Energy Corp. Class A | 0.67% | 216,047 | $13.4M | New |
| EVH Evolent Health Inc. Class A | 0.64% | 1,361,830 | $12.9M | Reduce -62.9% |
| RGEN Repligen Corp. | 0.64% | 101,197 | $12.9M | Reduce -5.8% |
| BPMC Blueprint Medicines Corp. | 0.64% | 144,756 | $12.8M | Add +2.0% |
| VERX Vertex Inc. Class A | 0.63% | 360,949 | $12.6M | Reduce -0.5% |
| ZETA Zeta Global Holdings Corp. Class A | 0.57% | 843,499 | $11.4M | Add +28.6% |
| CCOI Cogent Communications Holdin | 0.57% | 185,582 | $11.4M | Add +6.4% |
| BELFB Bel Fuse Inc. Class B | 0.56% | 151,481 | $11.3M | Reduce -5.0% |
| P Everpure Inc. Class A filed as PURE STORAGE INC | 0.54% | 246,302 | $10.9M | Add +46.7% |
| ELF Elf Beauty Inc. | 0.52% | 166,704 | $10.5M | Add +116.4% |
| MTRN Materion Corp. | 0.51% | 124,489 | $10.2M | Reduce -1.5% |
| RDDT Reddit Inc. Class A | 0.50% | 96,630 | $10.1M | Reduce -37.4% |
| NCLH Norwegian Cruise Line Holdin | 0.50% | 534,409 | $10.1M | Add +80.1% |
| BLFS Biolife Solutions Inc. | 0.50% | 439,500 | $10.0M | Reduce -3.8% |
| ENVX Enovix Corp. | 0.48% | 1,326,217 | $9.7M | Reduce -2.4% |
| NVMI Nova Ltd. | 0.47% | 50,874 | $9.4M | Add +153.5% |
| SPIR Spire Global Inc. | 0.46% | 1,139,175 | $9.2M | Add +803.6% |
| VKTX Viking Therapeutics Inc. | 0.44% | 367,961 | $8.9M | Add +20.4% |
| QXO Qxo Inc. | 0.42% | 622,968 | $8.4M | Reduce -4.3% |
| QLYS Qualys Inc. | 0.41% | 64,671 | $8.1M | Add +36.0% |
| VRNS Varonis Systems Inc. | 0.40% | 199,493 | $8.1M | Add +45.6% |
| KNSA Kiniksa Pharmaceuticals Inte | 0.40% | 361,894 | $8.0M | Reduce -21.9% |
| FROG Jfrog Ltd. | 0.40% | 250,742 | $8.0M | Add +2.7% |
| CYBR Cyberark Software Ltd./Israel | 0.36% | 21,424 | $7.2M | Reduce -42.2% |
| CECO Ceco Environmental Corp. | 0.36% | 317,416 | $7.2M | New |
| GLOB Globant SA | 0.35% | 60,368 | $7.1M | Reduce -69.0% |
| ONTO Onto Innovation Inc. | 0.35% | 57,101 | $6.9M | Add +113.8% |
| JBTM JBT Marel Corp. | 0.34% | 56,339 | $6.9M | New |
| POWL Powell Industries Inc. | 0.34% | 40,200 | $6.8M | New |
| SNDX Syndax Pharmaceuticals Inc. | 0.34% | 549,942 | $6.8M | Reduce -39.3% |
| GRBK Green Brick Partners Inc. | 0.33% | 114,813 | $6.7M | New |
| RMBS Rambus Inc. | 0.33% | 128,682 | $6.7M | Add +55.8% |
| CFLT Confluent Inc. Class A | 0.32% | 274,709 | $6.4M | Reduce -17.7% |
| MEC Mayville Engineering Co. Inc. | 0.32% | 478,038 | $6.4M | Reduce -17.4% |
| CRVL Corvel Corp. | 0.31% | 56,193 | $6.3M | Add +3.4% |
| VIVID SEATS INC | 0.31% | 2,123,080 | $6.3M | Reduce -37.2% |
| TSEM Tower Semiconductor Ltd. | 0.31% | 173,430 | $6.2M | New |
| XENE Xenon Pharmaceuticals Inc. | 0.31% | 183,808 | $6.2M | Add +0.8% |
| NXT Nextpower Inc. filed as NEXTRACKER INC | 0.30% | 140,638 | $5.9M | Add +1140.2% |
| VECO Veeco Instruments Inc. | 0.29% | 292,165 | $5.9M | Add +19.9% |
| OKTA Okta Inc. | 0.29% | 54,862 | $5.8M | Add +7.9% |
| MLTX Moonlake Immunotherapeutics | 0.28% | 142,220 | $5.6M | Add +4.2% |
| CMCO Columbus McKinnon Corp. | 0.27% | 316,856 | $5.4M | Add +11.5% |
| HQY Healthequity Inc. | 0.26% | 59,539 | $5.3M | New |
| EVER Everquote Inc. Class A | 0.26% | 200,076 | $5.2M | Reduce -56.4% |
| AMRC Ameresco Inc. Class A | 0.25% | 416,496 | $5.0M | Add +3822.9% |
| ZYME Zymeworks Inc. | 0.24% | 407,589 | $4.9M | Reduce -0.9% |
| EWTX Edgewise Therapeutics Inc. | 0.24% | 217,667 | $4.8M | Reduce -27.4% |
| LSCC Lattice Semiconductor Corp. | 0.23% | 86,716 | $4.5M | Reduce -30.6% |
| LENZ Lenz Therapeutics Inc. | 0.23% | 176,166 | $4.5M | Add +239.8% |
| NPKI NPK International Inc. | 0.22% | 776,430 | $4.5M | Add +10.0% |
| RVMD Revolution Medicines Inc. | 0.22% | 126,752 | $4.5M | Add +6.1% |
Portfolio Sells Q4 2024 → Q1 2025
| AXON Axon Enterprise Inc. | Reduce -47.8% | 2.21% | −1.80 |
| GLOB Globant SA | Reduce -69.0% | 0.35% | −1.39 |
| FOUR SHIFT4 Payments Inc. Class A | Reduce -54.2% | 0.97% | −1.28 |
| INDI Indie Semiconductor Inc. Class A | Reduce -0.9% | 1.78% | −1.21 |
| EVH Evolent Health Inc. Class A | Reduce -62.9% | 0.64% | −1.08 |
| MGNI Magnite Inc. | Reduce -26.7% | 1.51% | −0.90 |
| RDDT Reddit Inc. Class A | Reduce -37.4% | 0.50% | −0.55 |
| WK Workiva Inc. | Sold out | 0.00% | −0.43 |
| INFA Informatica Inc. Class A | Sold out | 0.00% | −0.41 |
| DMRC Digimarc Corp. | Sold out | 0.00% | −0.39 |
| CHEF The Chefs' Warehouse Inc. | Reduce -98.1% | 0.01% | −0.38 |
| PCTY Paylocity Holding Corp. | Reduce -36.7% | 0.89% | −0.37 |
| KLC Kindercare Learning Cos Inc. | Reduce -15.1% | 0.71% | −0.37 |
| SPT Sprout Social Inc. Class A | Reduce -20.7% | 0.75% | −0.36 |
| BOOT Boot Barn Holdings Inc. | Reduce -61.1% | 0.17% | −0.35 |
| VIVID SEATS INC | Reduce -37.2% | 0.31% | −0.34 |
| ACVA Acv Auctions Inc. Class A | Reduce -5.2% | 0.96% | −0.34 |
| EXAS Exact Sciences Corp. | Reduce -23.9% | 0.73% | −0.31 |
| LOVE The Lovesac Co. | Reduce -96.0% | 0.01% | −0.31 |
| PLRX Pliant Therapeutics Inc. | Sold out | 0.00% | −0.29 |
| CCC CCC Intelligent Solutions Ho | Sold out | 0.00% | −0.25 |
| ITCI Intra-Cellular Therapies Inc. | Sold out | 0.00% | −0.24 |
| QTRX Quanterix Corp. | Sold out | 0.00% | −0.24 |
| ACHC Acadia Healthcare Co. Inc. | Sold out | 0.00% | −0.24 |
| COCO The Vita Coco Co. Inc. | Reduce -74.1% | 0.08% | −0.23 |
| PSN Parsons Corp. | Sold out | 0.00% | −0.19 |
| EEFT Euronet Worldwide Inc. | Sold out | 0.00% | −0.18 |
| VERX Vertex Inc. Class A | Reduce -0.5% | 0.63% | −0.18 |
| DV Doubleverify Holdings Inc. | Sold out | 0.00% | −0.18 |
| SNDX Syndax Pharmaceuticals Inc. | Reduce -39.3% | 0.34% | −0.16 |
| NTRA Natera Inc. | Reduce -47.3% | 0.21% | −0.16 |
| PTC PTC Inc. | Reduce -50.2% | 0.16% | −0.16 |
| CYBR Cyberark Software Ltd./Israel | Reduce -42.2% | 0.36% | −0.15 |
| PDFS PDF Solutions Inc. | Sold out | 0.00% | −0.15 |
| HCAT Health Catalyst Inc. | Sold out | 0.00% | −0.15 |
| ALGM Allegro Microsystems Inc. | Reduce -84.2% | 0.04% | −0.14 |
| FIVN FIVE9 Inc. | Reduce -37.3% | 0.14% | −0.14 |
| OSIS Osi Systems Inc. | Sold out | 0.00% | −0.14 |
| BLBD Blue Bird Corp. | Sold out | 0.00% | −0.14 |
| ENVX Enovix Corp. | Reduce -2.4% | 0.48% | −0.13 |
| CSTL Castle Biosciences Inc. | Sold out | 0.00% | −0.12 |
| EVER Everquote Inc. Class A | Reduce -56.4% | 0.26% | −0.12 |
| PRO Pros Holdings Inc. | Reduce -41.5% | 0.19% | −0.12 |
| URBN Urban Outfitters Inc. | Sold out | 0.00% | −0.12 |
| GTLS Chart Industries Inc. | Reduce -28.4% | 0.20% | −0.11 |
| HUBS HubSpot Inc. | Reduce -8.1% | 0.97% | −0.11 |
| OLLI Ollie's Bargain Outlet Holdi | Sold out | 0.00% | −0.10 |
| FOXF Fox Factory Holding Corp. | Sold out | 0.00% | −0.10 |
| HBIO Harvard Bioscience Inc. | Reduce -5.5% | 0.04% | −0.10 |
| EWTX Edgewise Therapeutics Inc. | Reduce -27.4% | 0.24% | −0.10 |
Portfolio Buys Q4 2024 → Q1 2025
| DSGX The Descartes Systems Grp | Add +715.5% | 1.90% | +1.68 |
| COMP Compass Inc. Class A | Add +34.0% | 2.35% | +1.36 |
| FIX Comfort Systems USA Inc. | New | 1.10% | +1.10 |
| LEU Centrus Energy Corp. Class A | New | 0.67% | +0.67 |
| ODD Oddity Tech Ltd. Class A | Add +1.1% | 3.35% | +0.65 |
| STEP Stepstone Group Inc. Class A | Add +45.7% | 1.32% | +0.48 |
| SMTC Semtech Corp. | Add +108.5% | 1.64% | +0.45 |
| FTAI Ftai Aviation Ltd. | Add +128.9% | 0.74% | +0.39 |
| SPIR Spire Global Inc. | Add +803.6% | 0.46% | +0.38 |
| MOD Modine Manufacturing Co. | Add +120.8% | 0.89% | +0.38 |
| CECO Ceco Environmental Corp. | New | 0.36% | +0.36 |
| JBTM JBT Marel Corp. | New | 0.34% | +0.34 |
| SPSC SPS Commerce Inc. | Add +33.3% | 2.67% | +0.34 |
| POWL Powell Industries Inc. | New | 0.34% | +0.34 |
| GRBK Green Brick Partners Inc. | New | 0.33% | +0.33 |
| TSEM Tower Semiconductor Ltd. | New | 0.31% | +0.31 |
| NVMI Nova Ltd. | Add +153.5% | 0.47% | +0.30 |
| NXT Nextpower Inc. | Add +1140.2% | 0.30% | +0.28 |
| HQY Healthequity Inc. | New | 0.26% | +0.26 |
| AMRC Ameresco Inc. Class A | Add +3822.9% | 0.25% | +0.24 |
| RBC RBC Bearings Inc. | Add +2.1% | 1.00% | +0.24 |
| NTNX Nutanix Inc. Class A | Add +6.8% | 0.71% | +0.22 |
| NCLH Norwegian Cruise Line Holdin | Add +80.1% | 0.50% | +0.19 |
| FWRG First Watch Restaurant Group | Add +8.3% | 1.32% | +0.18 |
| ALAB Astera Labs Inc. | New | 0.16% | +0.16 |
| LENZ Lenz Therapeutics Inc. | Add +239.8% | 0.23% | +0.16 |
| GTES Gates Industrial Corp. UK Ltd. | Add +18.5% | 0.77% | +0.16 |
| ONTO Onto Innovation Inc. | Add +113.8% | 0.35% | +0.16 |
| RMBS Rambus Inc. | Add +55.8% | 0.33% | +0.15 |
| VRNS Varonis Systems Inc. | Add +45.6% | 0.40% | +0.15 |
| QLYS Qualys Inc. | Add +36.0% | 0.41% | +0.13 |
| ACHR Archer Aviation Inc. Class A | Add +31.8% | 0.99% | +0.13 |
| CRDO Credo Technology Group Holdi | New | 0.12% | +0.12 |
| BPMC Blueprint Medicines Corp. | Add +2.0% | 0.64% | +0.12 |
| OKTA Okta Inc. | Add +7.9% | 0.29% | +0.12 |
| ELF Elf Beauty Inc. | Add +116.4% | 0.52% | +0.12 |
| SLNO Soleno Therapeutics Inc. | New | 0.12% | +0.12 |
| P Everpure Inc. Class A | Add +46.7% | 0.54% | +0.11 |
| FROG Jfrog Ltd. | Add +2.7% | 0.40% | +0.10 |
| CORZ Core Scientific Inc. | New | 0.08% | +0.08 |
| IDCC Interdigital Inc. | New | 0.08% | +0.08 |
| ZETA Zeta Global Holdings Corp. Class A | Add +28.6% | 0.57% | +0.08 |
| ANAB Anaptysbio Inc. | Add +38.1% | 0.14% | +0.08 |
| CRVL Corvel Corp. | Add +3.4% | 0.31% | +0.06 |
| CVLT Commvault Systems Inc. | New | 0.06% | +0.06 |
| CIEN Ciena Corp. | Add +51.3% | 0.22% | +0.05 |
| WSC Willscot Holdings Corp. | Add +5.3% | 0.86% | +0.04 |
| AGIO Agios Pharmaceuticals Inc. | Add +14.2% | 0.19% | +0.03 |
| SN Sharkninja Inc. | Add +2.5% | 0.73% | +0.03 |
| APPS Digital Turbine Inc. | New | 0.03% | +0.03 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 150 | $2.8B | PRCH, SIMO, FPS, INDI, VCTR |
| Q1 2026 | 149 | $2.1B | CRS, PRCH, FTAI, MOD, VCTR |
| Q4 2025 | 157 | $2.3B | PRCH, GENI, CRS, FTAI, VCTR |
| Q3 2025 | 146 | $2.4B | PRCH, GENI, ODD, MGNI, VCTR |
| Q2 2025 | 153 | $2.5B | PRCH, ODD, MGNI, GENI, MRX |
| Q1 2025 | 159 | $2.0B | PRCH, GENI, MRX, ODD, VCTR |
| Q4 2024 | 180 | $2.4B | AXON, VCTR, INDI, GENI, MRX |
| Q3 2024 | 187 | $2.5B | EVH, AXON, ZETA, INDI, TOST |
| Q2 2024 | 180 | $2.5B | INDI, ZETA, AXON, MGNI, SPT |
| Q1 2024 | 181 | $2.8B | INDI, SPT, AXON, ZETA, EVH |